Tool.



0. K. OLSON.

TOOL.

APPLICATION FILED JAN. 30, 1912,

1,05 1,754. Patented Jan. 28, 1913.

lnventol Attorneys UNITED STATES PATENT OFFICE.

OLE K. OLSON, OF REDMOND, OREGON, ASSIGNOR OF ONE-HALF TO J. ELMER FREEBERG, OF REDMOND, OREGON.

TOOL.

Specification of Letters Patent.

Patented Jan. 28,1913.

Application filed. January 30, 1912. Serial No. 674,374.

To all whom it may concern:

Be it known that I, OLE K. OLSON, a citi- Zen of the United States, residing at Redmond, in the county of Crook and State of Oregon, have invented a new and useful Tool, of which the following is a specification.

The device forming the subject-matter of this application, is a tool adapted to be employed for cutting the rear wall and the side walls of a seat, in which a butt is mounted, the tool being equally applicable for use upon a door, or upon a jamb, means being provided for indicating the depth of the seat, so that the constituent material may be removed, by a chisel, from within the area defined by the rear and side walls of the seat.

The invention alms to provide a series of movable cutting members, adapted to form the side walls and the rear wall of the seat; to provide novel means for directing the movement of the cutting members; to pro vide means for retracting the cutting members, out of the seat; to provide a stop for indicating the width of the seat; to equip the stop with means for indicating the depth of the seat; and so to construct the device that the primary blade, when driven into the wood, will cause a lip, protruding from the stop, to enter the wood, at right angles to the movement of the blade, thereby to indicate the depth of the seat.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings,Figure 1 shows the invention in perspective; Fig. 2 is a section upon the line A-B of Fig. 1; Fig. 3 is a section upon the line CD of Fig. 1; Fig. 4 is a detail enlarged from Fig. 2; Fig. 5 is a perspective of the body portion of the structure, the blades and the stop being removed therefrom; and Fig. 6 is a fragmental section upon the line E-F of Fig. 1.

In carrying out the invention there is provided as a primary element, a body 1, which may be of any form. In the present instance, the body is equipped with an outstanding handle 2, the body, for the sake of lightness in weight, being cut away, to form upstanding wings 3, located at right angles to the handle 2.

Outstanding from the parallel, alined faces of the wings 3, are blade-directing lugs 4, and adjacent the bases of the lugs 4 are threaded openings 5. Outstanding from the parallel faces of the wings 3, are lugs 6, and at the bases of the lugs 6 there are threaded openings 7.

The invention further includes a primary blade 8, having slots 9, adapted to receive the lugs 4, whereby the sliding movement of the blade 8 may be directed. Headed screws 10 are threaded into the openings 5, these screws -10 constituting, primarily, means for retaining the blade 8 upon the lugs 4. However, should it be desired to hold the blade 8 against relative movement with respect to the body 1, the screws 10 may be rotated so that their heads will engage with the primary blade.

A pair of secondary blades 11 are provided, the same having slots 12, adapted to receive the lugs 5, whereby the sliding movement of the secondary blades 11 may be directed. Screws 14 pass through the slots 12, and enter the openings 7, for the purpose hereinbefore set forth, in connection with screws 10. The primary blade 8 is adapted to fashion the rear wall of the buttreceiving seat, and the secondary blades 11 are adapted to fashion the side walls of the seat. The cutting edges of the several blades are denoted by the numeral 15, these edges slanting away from the body 1. As shown in clearest detail in Fig. 6, those edges of the blades 8 and 11 which lie parallel to the lines of movement of the blades are beveled, as shown at 16, so as to define a sharp angle as the blades 8 and 11 meet, thus to cut a clean, angular corner in the recess.

A resilient means is provided for retracting the blades 8 and 11. With this end in View, passages 17 are fashioned in the ends of the lugs 4 and 6, and into these assages 17 are inserted compression springs 9, preferably of helical form. Plungers 20 bear against the exposed ends of the springs 19, the plungers 20 having guiding stems 21, extended within the contour of the springs 19. Under the action of the springs 19, the

plungers 20 are thrust away from the lugs, so that the extremities of the plungers will bear against the end walls of the slots 9 and 12 in the plates 8 and 11, respectively.

A means is provided for indicating and fixing the width of the seat, and for indicating the depth of the seat. This -means preferably comprises a stop plate 22, mounted upon the body 1, for sliding movement at right angles to the plane of movement of i beveled edge adapted to cut the rear wall of the primary blade 8. The stop plate 22 is equipped with transverse, elongated slots 23, and through these slots 23 pass screws 24, into engagement with the body 1. By advancing the stop plate 22 toward the primary blade 8, and by retracting the stop plate therefrom, the width of the seat may be determined, the stop being held in ad justed positions by means of the screws 24.

Outstanding from the stop 22, approxi mately parallel to the stop-receiving face of the body 1, is a deptlrindicating lip 25, which protrudes toward the primary blade 8. f

In practical operation, the stop 22 is held I in an adjust-ed position, through the medium of the screws 24, so as to limit and to 1 determine the width of the seat. The blades 8 and 11 protrude, at their percussive ends beyond the body 1, so as to receive the blows of a driving tool, and under the impulse of such blows, the blades 8 and 11 may be made to enter the wood, the blade 8 cutting the rear wall of the seat, and the blades 11 cutting the side walls of the seat. The: blades, as will be understood readily, will be retracted, by the action of the springs 19 and the plunger 20. Then the primary blade 8 is driven into the wood, its cutting edge 15 will cause the entire structure to move transversely of the material in which the seat is being cut. This movement of the structure will cause the lip 25 of the stop plate 22 to enter the wood, thereby determining the depth of the seat, so that the constituent material may be removed, by a chisel or like tool.

Having thus described the invention, what is claimed is 1. A tool for cutting the rear wall of a butt seat and for marking the depth of a butt seat, comprising'a body; a blade slidable upon the body, the blade having a the seat and to slide the body across the material; a stop upon the body, adapted to receive the material to limit the sliding movement of the body, there being a lip upon the stop adapted to enter the material to mark the depth of the seat when the tool is slid; and means for holding the stop adjustably fixed upon the body.

2. A tool for cutting butt seats, comprising a body; a primary blade slidable upon the body and adapted to cut the rear wall of the seat; secondary blades slidable upon the body, at an angle to the primary blade, and adapted to cut the side walls of the seat; there being blade-directing stops outstanding from the body, and the blades having slots adapted to receive the lugs, the lugs having recesses in their ends; springs in the recesses; plungers engageable by the i springs, the plungers engaging the end walls of the slots, to eii ect a retraction of the blades; and blade-retaining screws threaded into the body, through the slots in the blades.

In testimony that I claim the foregoing as my own, I have hereto atlixed my signature in the presence of two witnesses.

OLE K. OLSON. Witnesses W. S. RODMAN, WVALTER M. RODMAN.

Copies of this patent may be obtained for :five cents each, by addressing the Commissioner of Patents, Vashington, D. C. 

